China Overseas Engineering Group Co. Ltd and China Railway No. 2 Engineering Group Co Ltd have launched a 6.4m diameter Robbins Double Shield TBM for a 13.1km headrace tunnel located in southern Nepal ...
China's largest-diameter dual-shield, self-developed TBM (Tunnel Boring Machine), the "Jianghan Ping'an," was launched on Sunday in Yichang, Central China's Hubei Province, as part of a project to ...
In the mountains of Peru a tunnel-boring machine named “Pacha Mama” is grinding through the heart of the Andes under rock as deep as 6,890 ft. It is carving away at a 20.2-kilometer-long tunnel ...
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